When the current in the coil is changed, the magnetic fields around also produced corresponding changes, this change can make the magnetic field coil induced electromotive force (EMF is used to represent the terminal voltage of the active element of ideal power source, this is the self).
it is also one of the components used in electronic circuits, related products such as film filter etc
Also refers to the use of this property made of components. Inductor and transformer (inductor) are insulated conductor (e.g. enameled wire, wire etc.) electromagnetic induction element formed by winding
Inductance refers to the coil in the magnetic field activity, can be induced by the intensity of the current unit is "Henry" (H)
